Microsoft couple of days ago released a new build 17666 for Windows Server 2019. The latest preview build is part of the Redstone 5 development branch and comes with many new features along with known issues which are part of every preview build.

The new preview build comes with the performance history of Storage Space Direct and options to delimit volume allocation. The build also includes VHDX archive which can be downloaded in English.

The latest Windows Server 2019 preview can be downloaded as an ISO image in 18 different languages. The company has also provided two keys which allow unlimited activations for the Insiders.

As is expected from a preview build, it comes with some known issues apart from the new features. The known issues include issues with the Active Directory Domain Controllers which might not be upgraded correctly after installing the preview build.

As a precaution, Microsoft requests users to first back up any Active Directory Domain Controllers before starting to download the new preview build.

Users could also notice crashes for the MMC, if they try to edit or create AppLocker. The AppX database is also expected to contain corrupt entries after installation of the build.

Microsoft wants the insiders to install the latest preview build for Windows Server 2019 and provide the company with the feedback for it to fix the known issues and bugs found during testing before it decides to roll out the Windows Server build to the general public.

The build is expected to be available for download until December 14, after which the users will not be able to download it. As this is a preview build, it is always advisable to first go through the list of known issues before taking the download.

The new preview build 17666 can be downloaded from the Microsoft’s website here and is available for users who have enrolled themselves in the Insider program to test early builds.